/**
 * Copyright (c) 2011 Alexander De Leon Battista
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package es.upm.oeg.presto.extension;

import java.util.Collection;

import net.xeoh.plugins.base.Plugin;
import net.xeoh.plugins.base.PluginManager;
import net.xeoh.plugins.base.annotations.PluginImplementation;
import net.xeoh.plugins.base.annotations.injections.InjectPlugin;
import net.xeoh.plugins.base.util.PluginManagerUtil;
import es.upm.oeg.presto.api.ExtensionManager;

/**
 * @author Alexander De Leon
 */
@PluginImplementation
public class ExtensionManagerImpl implements ExtensionManager {

	@InjectPlugin
	public PluginManager pm;

	private PluginManagerUtil jspf;

	public PluginManagerUtil getJspf() {
		if (jspf == null) {
			jspf = new PluginManagerUtil(pm);
		}
		return jspf;
	}

	@Override
	public <E extends Plugin> Collection<E> getExtensions(Class<E> extensionApi) {
		return getJspf().getPlugins(extensionApi);
	}

}
